Home / 99,691,943.60-149,691,880.20-54,342,311.60

Finding the Fourth Proportional to 99,691,943.60, 149,691,880.20 and 54,342,311.60

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Solution

The fourth proportional to 99,691,943.60, 149,691,880.20 and 54,342,311.60 is: 81,597,393.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,691,943.60 : 149,691,880.20 = 54,342,311.60 : x
  2. Step 2: Convert to fraction form
    99,691,943.60/149,691,880.20 = 54,342,311.60/x
  3. Step 3: Cross multiply
    99,691,943.60x = 149,691,880.20 × 54,342,311.60
  4. Step 4: Simplify right side
    99,691,943.60x = 8,134,602,797,818,270
  5. Step 5: Solve for x
    x = 8,134,602,797,818,270/99,691,943.60
  6. Step 6: Final answer
    x = 81,597,393.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.